Figure 2
The packing of the [U(CO3)2O2(O2)]4− units in K4[U(CO3)2O2(O2)]·2.5H2O, with interstitial K+ ions and water molecules, viewed along the a axis. Light-grey spheres denote K+ ions, dark-grey spheres water molecules, light grey polyhedra [UO8] groups and black triangles [CO3] groups. |